On Thu, Oct 25, 2018 at 11:53:17PM +0530, Srikar Dronamraju wrote: > > > > You can create multiple partitions with cpusets but still have an > > unbound task in the root cgroup. That would suffer the exact same > > problems. > > > > I probably don't understand this. Even if the child cgroups has > cpu_exclusive or sched_load_balance reset, the tasks in root cgroup has > access to all cpus in system. Right?
The crucial word being 'access'. The root group will not impose a limit on the affinity of tasks. So you can indeed have affinities that span load balancing domains. And yes, that leads to 'interesting' but specified behaviour.